Jar-closure.



No. 724,256. f

. PATENTBD MAR. 31, 190s'.

W. E. BROWN. JAB. GLOSURE.

APPLIGATION FILED JUNE 3, 1902.

no Monm.

UNITED" STATES f nibnraw rrics.

WILLIAM E. BROWN, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO B-W AUTOMATICJAR & BOTTLE COMPANY, OF LOS ANGELES, CALIFORNIA,

A CORPORATION OF CALIFORNIA.

JAR-C'LOSURE.

SPECIFICATIONfoI-mng part of Letters Patent No. 724,256, dated March 31,1903.

Application filed June 3, 1902. Serial No. 110,095. (No model.)

To all whom t may concern.-

Beit known that I, WILLIAM E. BROWN, of Los Angeles, in the county ofLos -Angeles and State of California, have invented certain new anduseful Improvements in .Jar-Closures; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. I

The object of this invention is to provide a jar or bottle closure soconstructed that in forcing the closure home and securing thegasket-ring in proper position not only will the vessel be madeair-tight, but the closure or stopper will be securely locked as againstaccidental displacement by internal pressure.

The invention will be hereinafter fully set forth, and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section and sideelevation.l Fig. 2 is a similar view with the stopper forced home. Fig.3 is a perspective view of the upper portion of the jar with the stopperremoved. Fig. 4 is an edge view of the stopper.

On the interior of the jar, bottle, or other vessel 1, near the upperend, is an annular groove 2, of approximately semicircular formation incross-section. The stopper 3 has on its neck or reduced cylindricalportion two annular grooves 4 and 5, the former being at or very nearthe lower end of the neck and separated from groove 5 by a spaceapproximately equal to the distance between the upper edge of groove 2and the top edge of the vessel.

6 is a gasket-ring of suitable material, preferably rubber, and circularin cross-section, so that it will snugly fit within groove 5 of thestopper and groove 2 of the vessel and prevent all leakage. To insertthe stopper, the ring being rst positioned on the lower end, thereof,within groove 4 and made to rest on the upper edge of the jar, pressureupon the stopper will force the latter into the jaropening, the ringgoing with it, but at the same time riding up on the stopper, so thatwhen it reaches the groove 2 it will also be in line, or approximatelyso, with groove 5, the

stopper being lthus drawn to its seat with a quick snap. The lowergroove 4 is not really essential, as any ,provision `for temporarilyholding the ring will suflice, sufficient space being provided betweensuch temporary rest for the ring and the groove 5 as to insure thecoincidence of the ring and grooves 2 and 5 when the stopper is forcedhome.

In the inward travel of `the stopper, with the ring compressed betweenit and the jar, the coil or twist or roll given the ring is not usuallyuniform, with the result that the anged end of the stopper will not fitsnug against the end of the jar. To effect the proper centering of thering in its seat, it is necessary to give the stopper a slight axialturn,- whereupon the flanged end of the stopper will be drawn tightagainst the jar at every point.

To avoid all danger of forcing the stopper by working or fermentation ofthe contents of the jar, it is essential that thestopper be locked. Bymy invention I contemplate eecting this locking in the turning of thestopper to center the gasket-ringinits seat. From diametrically opposite'pointsron the stopper project side lugs 7, which in positioningthestopper in the first instance coincide with cut-outs 8 in the jar.After the stopper'is forced inward the axial turning thereof to` seatthe ring will place the lugs in Ways 9, extended laterally from theout-outs beneath overhanging portions 9, thereby locking the stopper asagainst working of the contents. To remove the stopper, it is necessaryto first turn it axially to bring lugs 7 in line with cut-outs 8,

' clearing the overhanging portions 93, whereupon by equal outwardpressure of the thumbs against diametrically opposite points of thestopper the latter will be quickly forced outward, the ring aiding inthis result vonce it is unseated. As the stopper is withdrawn from thejar the ring will bev around its end in groove 4 if the stopper beprovided therewith.

The advantages of my invention are apparent. It will be observed that Ihave provided simple and highly-ecient means for effectively sealing andlocking a processing jar-that is, a jar to be used for food products andthen subjected to treatment.

IOO

1. A jar or other vessel having an annular" groove near its upper end, astopper or closure having a corresponding annular groove near its upperend,ea gasket-ring carried vby the stopper and designed to be seated inthe grooves `of the jar and stopper when said grooves are brought intocoincidence by the inward movement of the stopper, said stopper beingturned axially to center the ring in its seat in said grooves, and meansfor locking said stopper in place, said stopper being so locked by suchmeans when it is so turned axially, as set forth.

2. A jar or other vessel having an annular groove near its upper end,and also having opposite cut-outs, and ways leading from the inner endsof saidgcut-outs, a stopper or closure having a corresponding annulargroove near its upper end, a gasket-ring carried by the stopper anddesigned to be seated in the grooves of the jar and stopper when said Qgrooves are brought into coincidence by the inward movement of thestopper, which latter is turned axially to center the ring in its seatin said grooves, lugs projecting laterally from the stopper near theupper end thereof and designed to be passed through said cutouts and Itin said ways, when the stopper is turned axially, as set forth.

3. A jar or other vessel having an annular groove near its upper end andalso having cut-outs and overhanging portions, a stopper or closurehaving an annular groove, a gasket carried in such groove of the stopperdesigned to be seated in the groove of the jar, lugs projectinglaterally from the stopper designed to be passed through said cut-outsand iit beneath said overhanging portions, such lugs being extendedbeneath such portions when the stopper is turned axially to center thering in the grooves, as set forth. v

In testimony whereof I have signed this specication in the presence oftwo subscribing witnesses.

WILLIAM E. BROWN.

Witnesses:

FRANK JAMES, J L. FLEMING.

